From d78f93642a888d697849ea5490ff92100d5da414 Mon Sep 17 00:00:00 2001 From: zleyyij Date: Fri, 2 Feb 2024 13:03:50 -0700 Subject: [PATCH] vault backup: 2024-02-02 13:03:50 --- education/statistics/Hypothesis Tests.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/education/statistics/Hypothesis Tests.md b/education/statistics/Hypothesis Tests.md index 77d595d..7ecd576 100644 --- a/education/statistics/Hypothesis Tests.md +++ b/education/statistics/Hypothesis Tests.md @@ -7,6 +7,10 @@ This test can be used if: - Can use a box with tickets of 1s and zeros to represent the population If an observed value is too many SEs away from the expected value, it is hard to explain by chance. +Start by finding a null and alternative hypothesis, eg: +- Null: The chance of *x* taking place is *y*%. This is often given in the problem +- Alternative: If you're being asked to determine if something has changed, you're determining whether or not *x* is not equal to y + | Term | Description | | ---- | ---- | | Null Hypothesis | This is a statement about a *parameter*. It's a statement about equality. The chance of getting *x* is *y%*. A null hypothesis isn't proven true, you either prove it wrong (reject it), or don't (fail to reject). |